WO2010114520A1 - Elevator regenerative drive including an air core inductor - Google Patents
Elevator regenerative drive including an air core inductor Download PDFInfo
- Publication number
- WO2010114520A1 WO2010114520A1 PCT/US2009/038927 US2009038927W WO2010114520A1 WO 2010114520 A1 WO2010114520 A1 WO 2010114520A1 US 2009038927 W US2009038927 W US 2009038927W WO 2010114520 A1 WO2010114520 A1 WO 2010114520A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air core
- motor
- elevator
- mode
- core inductor
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
- B66B1/302—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor for energy saving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Definitions
- Elevator systems are well known and in widespread use.
- An elevator car is supported for movement within a hoistway for carrying passengers between various levels within a building, for example.
- Many elevator systems include a counterweight associated with the elevator car by a roping arrangement.
- a machine e.g., motor and brake
- An exemplary elevator machine includes a motor that operates in a first mode to move an elevator car and in a second mode to generate power.
- a line reactor is associated with the motor for delivering power to the motor operating in the first mode and from the motor operating in the second mode.
- the line reactor comprises an air core inductor.
- Figure 1 schematically illustrates selected portions of an elevator system.
- Figure 2 schematically illustrates an example elevator machine arrangement.
- Figure 1 schematically shows selected portions of an elevator system
- a roping arrangement (e.g., round ropes or flat belts) supports the weight of the elevator car 22 and counterweight 24 in a known manner.
- An elevator machine 30 includes a motor 32 associated with a traction sheave 34.
- the motor 32 selectively causes movement of the traction sheave 34 to cause corresponding movement of the roping arrangement 26 to control the position and movement of the elevator car 22 within a hoistway.
- the machine 30 operates in a first mode in which it consumes power. Under some operating conditions, the elevator car 22 can move without requiring a motive force from the motor 32.
- the weight of the counterweight 24 can be relied upon to cause the elevator car 22 to rise within the hoistway as the counterweight 24 is allowed to descend. Releasing the brake of the elevator machine 30 and allowing the components of the motor 32 to rotate with the rotation of the traction sheave 34 under such conditions allows for the motor 32 to generate electrical power.
- the example motor 32 operates in a second mode for generating power.
- the example machine 30 includes a regenerative drive portion 36 for providing power to the motor 32 operating in the first mode and providing power generated by the motor 32 to a load 38 when the motor 32 operates in the second mode.
- the load 38 comprises a power grid interface or an energy storage device that allows for the power generated by the motor 32 to subsequently be fed back to the motor 32 when the machine 30 requires power for moving the elevator car 22.
- the load 38 comprises a device that requires electrical power for purposes of its own operation.
- FIG 2 schematically illustrates an example elevator machine 30 in which the regenerative drive portion 36 includes a line reactor 40 to be able to feed power generated by the motor 32 to the load 38.
- the line reactor 40 in this example comprises an air core inductor 42.
- three phase power is provided to the load 38 and three air core inductors 42 are included.
- Air core inductors 42 are included in the example arrangement for reducing noise associated with the machine 30 operating in a power generating mode.
- An air core inductor arrangement including a coil wrapped around a non-magnetic material (e.g., plastic) allows for operating the machine 30 in a regenerative drive mode without introducing additional noise.
- Some example air core inductors may not involve coil windings but do include conductors arranged in an air core configuration. Given this description, those skilled in the art will be able to select an appropriate air core configuration to meet their particular needs. Additionally, those skilled in the art who have the benefit of this description will be able to select an appropriate inductance value depending on the motor and other components associated with the machine 30 and the desired level of performance for their particular situation.
- Iron core inductors for example, experience magneto restriction in the iron core and that introduces noise into the elevator environment.
- An air core inductor does not have any such noise issues. Therefore, the example arrangement is well-suited for use in an elevator system where noise generation is a concern.
- the illustrated example includes a shield 44 for shielding the air core inductors 42 from any such components.
- the shield 44 comprises a housing that at least partially surrounds the air core inductors 42.
- the housing 44 completely encloses the air core inductors 42 to isolate them from magnetic materials in the surrounding area.
- the shield 44 comprises a magnetic material.
- the illustrated example includes a cooling element 46 associated with the air core inductors 42. In the illustration, the cooling element 46 is supported within the housing 44. In another example, the cooling element 46 is at least partially outside of the housing 44.
- One example cooling element 46 comprises a fan.
- a fan is outside of the housing 44 and associated with an air channel for directing air toward the air core inductors 42.
- Another example cooling element 46 comprises a coolant loop through which fluid flows for absorbing heat from the coils of the air core inductors 42.
- the example of Figure 2 includes other components associated with the machine 30.
- Switches 50 and 52 are selectively controlled depending on the needs of a particular situation.
- the switch 52 selectively opens of closes the circuit between the load (e.g., power grid) and the motor 52.
- a filter 54, converter 56, DC bus 58 and an inverter 60 are included and operate in known manners for realizing a regenerative elevator machine drive.
- the switch 50 closes for two-phase charging of the DC bus 58 during a power on procedure. Once the DC bus 58 is charged, the switch 50 opens and stays that way during elevator operation.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09842805T ES2748907T3 (en) | 2009-03-31 | 2009-03-31 | Regenerative elevator drive including an air core inductor |
JP2012503383A JP2012521941A (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive device with air-core inductor |
US13/255,972 US8827042B2 (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive including an air core inductor |
CN2009801585734A CN102365225A (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive including an air core inductor |
EP09842805.5A EP2414268B1 (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive including an air core inductor |
PCT/US2009/038927 WO2010114520A1 (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive including an air core inductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2009/038927 WO2010114520A1 (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive including an air core inductor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010114520A1 true WO2010114520A1 (en) | 2010-10-07 |
Family
ID=42828579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/038927 WO2010114520A1 (en) | 2009-03-31 | 2009-03-31 | Elevator regenerative drive including an air core inductor |
Country Status (6)
Country | Link |
---|---|
US (1) | US8827042B2 (en) |
EP (1) | EP2414268B1 (en) |
JP (1) | JP2012521941A (en) |
CN (1) | CN102365225A (en) |
ES (1) | ES2748907T3 (en) |
WO (1) | WO2010114520A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITNA20110041A1 (en) * | 2011-09-21 | 2013-03-22 | C E P A Euro Company Programs Afri Ca Srl | ELECTRICITY GENERATION SYSTEM BY MEANS OF THE EXPLOITATION OF GRAVITATIONAL POTENTIAL ENERGY |
JP2013142018A (en) * | 2012-01-10 | 2013-07-22 | Toshiba Elevator Co Ltd | Control device of hybrid drive type elevator |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10141817B2 (en) | 2013-05-28 | 2018-11-27 | Otis Elevator Company | Cooling of machine for elevator system |
US10479651B2 (en) | 2013-10-17 | 2019-11-19 | Otis Elevator Company | Cooling of machine for elevator system |
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WO2008085171A1 (en) * | 2007-01-11 | 2008-07-17 | Otis Elevator Company | Thermoelectric thermal management system for the energy storage system in a regenerative elevator |
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2009
- 2009-03-31 WO PCT/US2009/038927 patent/WO2010114520A1/en active Application Filing
- 2009-03-31 EP EP09842805.5A patent/EP2414268B1/en active Active
- 2009-03-31 ES ES09842805T patent/ES2748907T3/en active Active
- 2009-03-31 JP JP2012503383A patent/JP2012521941A/en active Pending
- 2009-03-31 US US13/255,972 patent/US8827042B2/en active Active
- 2009-03-31 CN CN2009801585734A patent/CN102365225A/en active Pending
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US4678063A (en) * | 1984-10-05 | 1987-07-07 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for controlling an elevator |
JPH1067469A (en) * | 1996-04-10 | 1998-03-10 | Otis Elevator Co | Energy storage regenerative elevator system and elevator operating method |
JP2005104681A (en) * | 2003-09-30 | 2005-04-21 | Toshiba Elevator Co Ltd | Elevator system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITNA20110041A1 (en) * | 2011-09-21 | 2013-03-22 | C E P A Euro Company Programs Afri Ca Srl | ELECTRICITY GENERATION SYSTEM BY MEANS OF THE EXPLOITATION OF GRAVITATIONAL POTENTIAL ENERGY |
JP2013142018A (en) * | 2012-01-10 | 2013-07-22 | Toshiba Elevator Co Ltd | Control device of hybrid drive type elevator |
Also Published As
Publication number | Publication date |
---|---|
US20120000730A1 (en) | 2012-01-05 |
EP2414268B1 (en) | 2019-08-07 |
ES2748907T3 (en) | 2020-03-18 |
US8827042B2 (en) | 2014-09-09 |
EP2414268A4 (en) | 2017-10-11 |
JP2012521941A (en) | 2012-09-20 |
EP2414268A1 (en) | 2012-02-08 |
CN102365225A (en) | 2012-02-29 |
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